<template>
  <div id="chart3" style="width: 300px;height: 300px;margin-left: 70px">
  </div>
</template>

<script>
  export default {
    name: 'chart3',
    mounted() {
      this.initCharts()
    },
    methods: {
      initCharts() {
        // 基于准备好的dom，初始化echarts实例
        let myChart = this.$echarts.init(document.getElementById('chart3'))

        var option = {
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              crossStyle: {
                color: '#999'
              }
            }
          },
          legend: {
            data: ['蒸发量', '降水量', '平均温度']
          },
          xAxis: [
            {
              type: 'category',
              data: ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月'],
              axisPointer: {
                type: 'shadow'
              }
            }
          ],
          yAxis: [
            {
              type: 'value',
              name: '水量',
              min: 0,
              max: 250,
              interval: 50,
              axisLabel: {
                formatter: '{value} ml'
              }
            },
            {
              type: 'value',
              name: '温度',
              min: 0,
              max: 25,
              interval: 5,
              axisLabel: {
                formatter: '{value} °C'
              }
            }
          ],
          series: [
            {
              name: '蒸发量',
              type: 'bar',
              data: [2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3]
            },
            {
              name: '降水量',
              type: 'bar',
              data: [2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3]
            },
            {
              name: '平均温度',
              type: 'line',
              yAxisIndex: 1,
              data: [2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2]
            }
          ]
        }
        myChart.setOption(option)
      }
    }
  }
</script>

<style scoped>

</style>
